File: race_stress.cpp

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (25 lines) | stat: -rw-r--r-- 507 bytes parent folder | download | duplicates (41) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
// RUN: %clangxx_tsan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
#include "test.h"

const int kThreads = 16;
const int kIters = 1000;

volatile int X = 0;

void *thr(void *arg) {
  for (int i = 0; i < kIters; i++)
    X++;
  return 0;
}

int main() {
  pthread_t th[kThreads];
  for (int i = 0; i < kThreads; i++)
    pthread_create(&th[i], 0, thr, 0);
  for (int i = 0; i < kThreads; i++)
    pthread_join(th[i], 0);
  fprintf(stderr, "DONE\n");
}

// CHECK: ThreadSanitizer: data race
// CHECK: DONE